// Copyright 2012 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. trait clam { fn chowder(&self, y: A); } struct foo { x: A, } impl clam for foo { fn chowder(&self, _y: A) { } } fn foo(b: A) -> foo { foo { x: b } } fn f(x: ~clam, a: A) { x.chowder(a); } pub fn main() { let c = foo(42); let d: ~clam = ~c as ~clam; f(d, c.x); }